—Shall I help you with the math problem?
—________.
A．If you wish B．With pleasure
C．You're welcome D．That's right
—Why don't we just leave it until tomorrow?
—________ I'm dead tired today.
A．Forget it. B．I couldn't agree more.
C．It all depends. D．Don't mention it.
—I forgot my mother's birthday!
—________ Better keep it in mind next year.
A．I'm afraid so. B．So what?
C．You did? D．No wonder.
—Would you mind giving me a lift?
—________. I am happy to.
A．Not at all B．Don't mention it
C．Never mind D．You don't say so
— I wonder if I could make a living by writing.
—________？
A．Who cares B．How dare you
C．For what D．Why not take a chance
—We need three single rooms for the first week in June.
—________. The hotel's not busy then.
A．No problem B．Don't bother
C．Never mind D．It doesn't matter
